Harrington, Insect Scientist

At the beginning of your end step create a black and green 1/1 Pest creature token

Insects and Pests you control have infect

Whenever a Pest you control deals combat damage to a player, create a copy of that Pest

{t}, Sacrifice x Pests: Create a token named Pest Swarm that has infect, Pest Swarm's power and toughness are equal to the amount of Pests sacrificed.